學如逆水行舟,不進則退 [ㄒㄩㄝˊ ㄖㄨˊ ㄋㄧˋ ㄕㄨㄟˇ ㄒㄧㄥˊ ㄓㄡ , ㄅㄨˋ ㄐㄧㄣˋ ㄗㄜˊ ㄊㄨㄟˋ; xue2 ru2 ni4 shui3 xing2 zhou1 , bu4 jin4 ze2 tui4] Study is like rowing upstream: no advance is to drop back ◄ ►